CN111425774A - Micro-structure anti-glare film and plate - Google Patents
Micro-structure anti-glare film and plate Download PDFInfo
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- CN111425774A CN111425774A CN202010247109.0A CN202010247109A CN111425774A CN 111425774 A CN111425774 A CN 111425774A CN 202010247109 A CN202010247109 A CN 202010247109A CN 111425774 A CN111425774 A CN 111425774A
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- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 238000010023 transfer printing Methods 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 229920002799 BoPET Polymers 0.000 claims description 4
- 238000003848 UV Light-Curing Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000010408 film Substances 0.000 abstract description 16
- 239000013078 crystal Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 6
- 238000010924 continuous production Methods 0.000 abstract description 2
- 239000012788 optical film Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000004313 glare Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910016569 AlF 3 Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 description 2
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/90—Methods of manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a micro-structure anti-glare film and a board, and relates to the technical field of optical films. At least one side surface of the micro-structure anti-glare film and the micro-structure anti-glare plate is provided with at least one group of concentric regular hexagon ridge line micro-structures, each group of regular hexagons is 12-72, the depth of the micro-structures is 20-40 um, the ridge spacing of each regular hexagon is equal, and the distance is 50-150 um. According to the invention, the UV coating is a low-temperature process, so that the die cannot be abraded, the UV coating process is very suitable for maintaining the precision and consistency of the microstructure, the produced microstructure product has higher precision than that of a prismatic crystal plate, and the lamp UGR test full table UGR <19 can be realized. In addition, the UV coating is in a continuous production and roll-to-roll mode, the production efficiency is high, and products are easy to cut into different sizes so as to meet the requirements of different customers.
Description
Technical Field
The invention relates to the technical field of optical films, in particular to a micro-structure anti-glare film and a plate.
Background
Before L ED lamps are popularized, a traditional office lighting anti-glare lamp is a grille lamp, light is hidden in a metal reflecting cover, the shielding angle reaches more than 30 degrees, and meanwhile, axial glare is further shielded by an aluminum partition on the outer side.
At present, an anti-dazzle product commonly used for L ED flat lamps comprises an extrusion molding prismatic crystal plate and a hot-press molding prismatic crystal plate, wherein the extrusion molding prismatic crystal plate is directly pressed into a prismatic crystal shape on the surface when a PS or PMMA plate is extruded and produced by a steel roller mold with a negative prism structure, the precision and consistency of the prismatic crystal structure are difficult to guarantee during high-temperature molding due to the influence of thermal expansion and water absorption of the PS and PMMA, in addition, the steel mold is easy to wear during continuous rolling at high temperature, and the steel mold needs to be repaired regularly, the other kind of the hot-press molding prismatic crystal plate is formed by heating an optical-grade transparent PMMA plate and hot-press molding by using a large-size plane steel mold, the process has higher precision than extrusion molding, but the cost is too high, the mold opening cost of the high-precision large-size flat steel mold is high, the investment cost of large-size hot-press molding equipment is also high, the hot-press production time of a single prismatic crystal plate is also longer, the efficiency is lower, and the largest defect of the prismatic crystal plates produced by the two kinds of processes.
Disclosure of Invention
The invention aims to provide a micro-structure anti-glare film and a board material, which are used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: at least one side surface of the microstructure anti-glare film is provided with at least one group of concentric regular hexagon ridge line microstructure arrangement, each group of regular hexagons is 12-72, the depth of the microstructure is 20um-40um, the ridge spacing of each regular hexagon is equal, and the distance is 50um-150 um.
Further, the production process of the film is as follows:
s1, designing a minimum unit pattern as a group of concentric regular hexagonal ridge line arrangement, and determining that the structure can converge the light of the L ED flat lamp within 75-90 degrees through L httools software simulation measurement;
s2: preparing special UV optical cement according to UV light source parameters of UV coating equipment;
s3: carving the designed microstructure on a roller die;
s4: UV light is uniformly coated on the optical PET film through UV coating equipment in a thousand-level dust-free workshop, and the anti-glare film is produced through transfer printing.
Furthermore, in order to avoid the damage of the precision mold in the step S3 in the production process, after the mother film is produced, the microstructure is copied to a light and thin nickel plate by a transfer copying technique, and then the nickel plate mold is coated on a rough roller.
At least one side surface of the micro-structured anti-glare plate is provided with at least one group of concentric regular hexagon ridge line micro-structure arrangement, each group of regular hexagons is 12-72, the depth of the micro-structure is 20um-40um, the ridge spacing of each regular hexagon is equal, and the distance is 50um-150 um.
Further, the production process of the plate is as follows:
s1, designing a minimum unit pattern as a group of concentric regular hexagonal ridge line arrangement, and determining that the structure can converge the light of the L ED flat lamp within 75-90 degrees through L httools software simulation measurement;
s2: preparing special UV optical cement according to UV light source parameters of UV coating equipment;
s3: carving the designed microstructure on a roller die;
s4: UV light curing glue is uniformly coated on the optical PC board in a thousand-level dust-free workshop through UV coating equipment, and the anti-glare board is produced through transfer printing.
Furthermore, in order to avoid the damage of the precision mold in the step S3 in the production process, after the mother film is produced, the microstructure is copied to a light and thin nickel plate by a transfer copying technique, and then the nickel plate mold is coated on a rough roller.
Compared with the prior art, the invention has the beneficial effects that:
(1) the microstructure anti-glare film and the microstructure anti-glare plate transfer the microstructure on the die to the optical-grade transparent PET film or the PC plate through the UV coating process, the used UV glue is optical-grade transparent light-cured glue, the UV coating process is a low-temperature process, the die cannot be abraded, the UV coating process is suitable for keeping the precision and consistency of the microstructure, the produced microstructure product is higher than the precision of a prismatic crystal plate, and the lamp UGR test full table UGR <19 can be realized. In addition, the UV coating is in a continuous production and roll-to-roll mode, the production efficiency is high, and products are easy to cut into different sizes so as to meet the requirements of different customers.
(2) This micro-structure anti-dazzle membrane and panel, the structure people's eye of micro-structure anti-dazzle membrane and panel can't see, consequently the lamps and lanterns that use micro-structure anti-dazzle membrane or panel when lighting, look softer more, and edge crystal plate is because the structure is great, looks like to have some dazzling.
Drawings
FIG. 1 is a schematic view of a set of concentric regular hexagonal ridge microstructures according to the present invention;
FIG. 2 is a schematic view of the structure of the outer wall of the membrane or plate according to the present invention;
FIG. 3 is a side view of the outer wall of the membrane or plate of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in figures 1-3, the invention provides a technical scheme that the microstructure anti-glare film is characterized in that firstly, a minimum unit pattern is designed to be a group of concentric regular hexagon ridge line microstructures, each group of regular hexagons is 60, the specific form is shown in figure 1, the microstructure depth of the product is 30 micrometers, the ridge spacing of each regular hexagon is equal, the distance is 100 micrometers, the minimum pattern unit is arrayed to obtain the microstructure pattern shown in figure 2, and L ighttols software simulation measurement is carried out to determine that the structure can be used for converging the light of a L ED flat lamp within 75-90 degrees, so that the effects of inhibiting high-angle light and reducing visual glare are achieved, and the UGR value of a lamp can be effectively reduced.
The special UV optical cement is prepared according to the UV light source parameters of the UV coating equipment, the viscosity, the complete curing time, the elongation, the refractive index and the like required by producing the product are met, and the formula of the UV optical cement adopted by the embodiment is as follows: 68g of Al2O3, 30g of BaCO3, 2g of SrCO3, 5g of MgO, and 1g of AlF 3.
The designed microstructure is engraved on a roller die, a special UV light curing adhesive is uniformly coated on an optical PET film in a thousand-level dust-free workshop through UV coating equipment, and the anti-glare film is produced through transfer printing.
In the formal mass production, in order to avoid the damage of the precision mold, after the mother film is produced, the microstructure is copied to a light and thin nickel plate through a transfer printing copying technology, and the rough blank roller is coated with the nickel plate mold for mass production, so that the mold cost can be further reduced.
The UV coating produces a coil material, and the coil material is cut into sheets with different sizes in a dust-free room according to different requirements of customers so as to be suitable for different lamps.
Example two:
as shown in figures 1-3, the invention provides a technical scheme that the microstructure anti-glare film is characterized in that firstly, a minimum unit pattern is designed to be a group of concentric regular hexagon ridge line microstructures, each group of regular hexagons is 70, the specific form is shown in figure 1, the microstructure depth of the product is 30 micrometers, the ridge spacing of each regular hexagon is equal, the distance is 100 micrometers, the minimum pattern unit is arrayed to obtain the microstructure pattern shown in figure 2, and L light tools software simulation measurement is carried out to determine that the structure can converge the light of a L ED flat lamp within 75-90 degrees, so that the effects of inhibiting high-angle light and reducing visual glare are achieved, and the UGR value of a lamp can be effectively reduced.
The special UV optical cement is prepared according to the UV light source parameters of the UV coating equipment, the viscosity, the complete curing time, the elongation, the refractive index and the like required by producing the product are met, and the formula of the UV optical cement adopted by the embodiment is as follows: 70g of Al2O3, 30g of BaCO3, 2g of SrCO3, 5g of MgO, and 1g of AlF 3.
The designed microstructure is carved on a roller die, a special UV light curing adhesive is uniformly coated on an optical PC plate in a thousand-level dust-free workshop through UV coating equipment, and the anti-glare plate is produced through transfer printing.
In the formal mass production, in order to avoid the damage of the precision mold, after the mother film is produced, the microstructure is copied to a light and thin nickel plate through a transfer printing copying technology, and the rough blank roller is coated with the nickel plate mold for mass production, so that the mold cost can be further reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A microstructured antiglare film, comprising: at least one side surface of the hexagonal micro-structure is provided with at least one group of concentric regular hexagonal ridge line micro-structure arrangement, each group of regular hexagons is 12-72, the depth of the micro-structure is 20um-40um, the edge spacing of each regular hexagon is equal, and the distance is 50um-150 um.
2. The microstructured antiglare film of claim 1, wherein: the production process of the membrane is as follows:
s1, designing a minimum unit pattern as a group of concentric regular hexagonal ridge line micro-structure arrangement, and determining that the structure can converge the light of a L ED flat lamp within 75-90 degrees through L httools software simulation measurement;
s2: preparing special UV optical cement according to UV light source parameters of UV coating equipment;
s3: carving the designed microstructure on a roller die;
s4: UV light is uniformly coated on the optical PET film through UV coating equipment in a thousand-level dust-free workshop, and the anti-glare film is produced through transfer printing.
3. The microstructured antiglare film of claim 2, wherein: in the step S3 in the production process, in order to avoid the damage of the precision die, after the mother film is produced, the microstructure is copied to a light and thin nickel plate by a transfer printing copying technology, and then the nickel plate die is coated on a rough blank roller to finish the production.
4. A micro-structure anti-glare plate is characterized in that: at least one side surface of the hexagonal micro-structure is provided with at least one group of concentric regular hexagonal ridge line micro-structure arrangement, each group of regular hexagons is 12-72, the depth of the micro-structure is 20um-40um, the edge spacing of each regular hexagon is equal, and the distance is 50um-150 um.
5. The microstructured antiglare sheet of claim 4, wherein: the production process of the plate is as follows:
s1, designing a minimum unit pattern as a group of concentric regular hexagonal ridge line micro-structure arrangement, and determining that the structure can converge the light of a L ED flat lamp within 75-90 degrees through L httools software simulation measurement;
s2: preparing special UV optical cement according to UV light source parameters of UV coating equipment;
s3: carving the designed microstructure on a roller die;
s4: UV light curing glue is uniformly coated on the optical PC board in a thousand-level dust-free workshop through UV coating equipment, and the anti-glare board is produced through transfer printing.
6. The microstructured antiglare sheet of claim 5, wherein: in the step S3 in the production process, in order to avoid the damage of the precision die, after the mother film is produced, the microstructure is copied to a light and thin nickel plate by a transfer printing copying technology, and then the nickel plate die is coated on a rough blank roller to finish the production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010247109.0A CN111425774A (en) | 2020-03-31 | 2020-03-31 | Micro-structure anti-glare film and plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010247109.0A CN111425774A (en) | 2020-03-31 | 2020-03-31 | Micro-structure anti-glare film and plate |
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| Publication Number | Publication Date |
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| CN111425774A true CN111425774A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010247109.0A Pending CN111425774A (en) | 2020-03-31 | 2020-03-31 | Micro-structure anti-glare film and plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303533A (en) * | 2020-10-21 | 2021-02-02 | 浙江彩丞照明科技有限公司 | Anti-dazzle lighting device, manufacturing method thereof and classroom lamp |
| CN112728431A (en) * | 2020-12-31 | 2021-04-30 | 苏州莱科光学科技有限公司 | Flat lamp and preparation method thereof |
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| CN101290095A (en) * | 2007-04-18 | 2008-10-22 | 财团法人工业技术研究院 | Anti-dazzle function table lamp |
| CN102537827A (en) * | 2010-12-31 | 2012-07-04 | 海洋王照明科技股份有限公司 | Anti-glare lampshade and illuminating lamp |
| CN107740994A (en) * | 2017-09-04 | 2018-02-27 | 苏州宝瑞德纳米光学材料有限公司 | LED micro-structural anti-dazzling film or plate and preparation method thereof |
| CN108548157A (en) * | 2018-05-17 | 2018-09-18 | 浙江彩丞照明科技有限公司 | A kind of anti-dazzle light diffusing sheet and lighting device with step-like micro-structure |
| CN208504271U (en) * | 2018-07-03 | 2019-02-15 | 中山市超派照明科技有限公司 | A kind of bulkhead lamp honeycomb inverted photomask structure being made of several hexagon reflectors |
| CN110043872A (en) * | 2019-05-24 | 2019-07-23 | 苏州宝瑞德纳米光学材料有限公司 | LED panel lamp diffusion barrier and plate |
| CN211450782U (en) * | 2020-03-30 | 2020-09-08 | 苏州宝瑞德纳米光学材料有限公司 | Diffusion plate and anti-glare film laminating assembly for LED lamp |
-
2020
- 2020-03-31 CN CN202010247109.0A patent/CN111425774A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101290095A (en) * | 2007-04-18 | 2008-10-22 | 财团法人工业技术研究院 | Anti-dazzle function table lamp |
| CN102537827A (en) * | 2010-12-31 | 2012-07-04 | 海洋王照明科技股份有限公司 | Anti-glare lampshade and illuminating lamp |
| CN107740994A (en) * | 2017-09-04 | 2018-02-27 | 苏州宝瑞德纳米光学材料有限公司 | LED micro-structural anti-dazzling film or plate and preparation method thereof |
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| CN208504271U (en) * | 2018-07-03 | 2019-02-15 | 中山市超派照明科技有限公司 | A kind of bulkhead lamp honeycomb inverted photomask structure being made of several hexagon reflectors |
| CN110043872A (en) * | 2019-05-24 | 2019-07-23 | 苏州宝瑞德纳米光学材料有限公司 | LED panel lamp diffusion barrier and plate |
| CN211450782U (en) * | 2020-03-30 | 2020-09-08 | 苏州宝瑞德纳米光学材料有限公司 | Diffusion plate and anti-glare film laminating assembly for LED lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303533A (en) * | 2020-10-21 | 2021-02-02 | 浙江彩丞照明科技有限公司 | Anti-dazzle lighting device, manufacturing method thereof and classroom lamp |
| CN112728431A (en) * | 2020-12-31 | 2021-04-30 | 苏州莱科光学科技有限公司 | Flat lamp and preparation method thereof |
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Application publication date: 20200717 |